Chris Smalling also hobbled off in the second half after a week that had seen midfielder Michael Carrick ruled out until next season.

But Van Gaal, who has had to juggle his options this term due to a spate of fitness concerns, delivered positive updates on all three after the 2-1 triumph which effectively secured United's top-four spot in the Premier League.

"[Shaw] had an elbow in his face and he had a bloody nose," Van Gaal explained. "He was dizzy, so -out of precaution - we took him off.

"He went to hospital but I have a message he will fly with us back so I'm not thinking it's very bad.

"Rooney had a dead leg, that's why I had to change him.

"[Smalling] was stumbling and I don't think he played his best match so that's why I changed. He had cramp, you could see it because he was pulling at his toes."